[snip]
> > If I get this right, you're saying that I should stop focusing on
> > "getting exim to check in AD-ldap for the user" and let exchange do
the
> > trick?
>
> What Exim would do with this config would be to do a dummy smtp run
for
> each recipient, so if it received mail from X for Y it would connect
to
> the Exchange box and do
>
> mail from: x
> rcpt to: y
>
> and see if Exhange accepted or rejected it. There are some
> advantages to this approach:
>
> * It's very simple.
> * You don't need to do multiple checks for the different kinds
> of objects on Exchange that might represent a valid e-mail
> address, you simply check for valid e-mail addresses.
> * Assuming Exchange has been configured to reject invalid
> addresses (rather than accepting them and bouncing them
> later), you don't need to know a thing about the technical
> set-up of the Exchange box or the Windows domain. You just
> need to know the name/address of the Exchange box and the
> e-mail domain that it hosts.
>
> In fact, all those points reduce to "It's very simple".
>
> --
> Bruce
After lunch I realized, that you are absolutely right... :]
There shouldn't be a need to check at exim if the recipient is ok,
it's just a mailrelay.
thx for the example and patience
-fe